Sea Temperature in Port Isabel in January

Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Port Isabel in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in Port Isabel. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Port Isabel in January

16°C

MINIMUN

20°C

AVERAGE

24°C

MAXIMUM

Historical Data of Water Temperature in January in Port Isabel

Water Temperature Chart for Gulf of Mexico (Gulf of America) in Port Isabel in January

Sea Temperature Table in Port Isabel in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	21°C	19°C	18°C	19.8°C
Jan 2	21°C	20°C	20°C	20.5°C
Jan 3	21°C	20°C	20°C	20.8°C
Jan 4	21°C	20°C	17°C	19.8°C
Jan 5	20°C	20°C	21°C	20.5°C
Jan 6	21°C	21°C	19°C	20.5°C
Jan 7	21°C	21°C	20°C	20.8°C
Jan 8	21°C	18°C	20°C	19.8°C
Jan 9	21°C	21°C	21°C	20.5°C
Jan 10	20°C	20°C	17°C	19.0°C
Jan 11	20°C	21°C	18°C	19.8°C
Jan 12	21°C	20°C	21°C	20.3°C
Jan 13	20°C	21°C	19°C	19.8°C
Jan 14	20°C	21°C	21°C	20.0°C
Jan 15	20°C	20°C	17°C	18.8°C
Jan 16	20°C	20°C	18°C	19.0°C
Jan 17	19°C	20°C	20°C	19.3°C
Jan 18	19°C	20°C	18°C	18.8°C
Jan 19	20°C	21°C	18°C	19.0°C
Jan 20	20°C	20°C	19°C	19.3°C
Jan 21	20°C	21°C	21°C	20.3°C
Jan 22	20°C	21°C	17°C	19.0°C
Jan 23	20°C	21°C	17°C	19.3°C
Jan 24	20°C	20°C	17°C	18.5°C
Jan 25	20°C	19°C	17°C	18.3°C
Jan 26	21°C	19°C	20°C	19.3°C
Jan 27	20°C	19°C	20°C	19.0°C
Jan 28	18°C	20°C	18°C	18.3°C
Jan 29	19°C	19°C	21°C	19.3°C
Jan 30	20°C	20°C	20°C	19.5°C

Port Isabel Climate and Swimming Opportunities in January

18°C

Average Day Air Temperature

11°C

Average Night Air Temperature

45 mm

Precipitation Amount per Month

8 days

Number of Rainy Days

11 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

20 km/h

Average Wind Speed

78%

Average
humidity

Port Isabel lies within the Texas in United States. The average daytime temperature in Port Isabel in January is 65°F (18°C), while the nighttime average is 51°F (11°C). There are typically eight rainy days during the month, with a total precipitation of 1.8 inches (45 mm). The daylight duration in January in Port Isabel is 11 hours, with an average of 4 hours of sunshine per day. The average wind speed in January is 12 mph (20 km/h), and the humidity level is around 78%.

The water temperature in Port Isabel in January ranges from 64°F to 68°F (18°C to 20°C). At the beginning of the month, the average temperature is around 68°F (20°C), shifting to 68°F (20°C) by mid-January and reaching 66°F (19°C) in the last ten days. Overall, the average sea temperature in Port Isabel for January is 68°F (20°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Port Isabel

What is the sea temperature in Port Isabel in January?

The water temperature in the Gulf of Mexico (Gulf of America) in Port Isabel in January ranges from 64°F to 68°F (18°C to 20°C).

Is it possible to swim in the Gulf of Mexico (Gulf of America) in Port Isabel in January?

The average sea temperature in Port Isabel in January is 68°F (20°C), and the air temperature is 65°F (18°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.